Finding the Fourth Proportional to 31,665,092,612.08, 43,698,681,148.32 and 18,630,185,158.71

Step by Step Solution

1. Step 1: Write the proportion equation
   31,665,092,612.08 : 43,698,681,148.32 = 18,630,185,158.71 : x
2. Step 2: Convert to fraction form
   31,665,092,612.08/43,698,681,148.32 = 18,630,185,158.71/x
3. Step 3: Cross multiply
   31,665,092,612.08x = 43,698,681,148.32 × 18,630,185,158.71
4. Step 4: Simplify right side
   31,665,092,612.08x = 814,114,520,984,631,640,064
5. Step 5: Solve for x
   x = 814,114,520,984,631,640,064/31,665,092,612.08
6. Step 6: Final answer
   x = 25,710,157,584.51