Finding the Fourth Proportional to 648,076,994.16, 972,118,013.32 and 156,789,475.52

Step by Step Solution

1. Step 1: Write the proportion equation
   648,076,994.16 : 972,118,013.32 = 156,789,475.52 : x
2. Step 2: Convert to fraction form
   648,076,994.16/972,118,013.32 = 156,789,475.52/x
3. Step 3: Cross multiply
   648,076,994.16x = 972,118,013.32 × 156,789,475.52
4. Step 4: Simplify right side
   648,076,994.16x = 152,417,873,451,987,200
5. Step 5: Solve for x
   x = 152,417,873,451,987,200/648,076,994.16
6. Step 6: Final answer
   x = 235,184,823.45