Finding the Fourth Proportional to 139,005,124.20, 208,607,219.10 and 58,284,023.40

Step by Step Solution

1. Step 1: Write the proportion equation
   139,005,124.20 : 208,607,219.10 = 58,284,023.40 : x
2. Step 2: Convert to fraction form
   139,005,124.20/208,607,219.10 = 58,284,023.40/x
3. Step 3: Cross multiply
   139,005,124.20x = 208,607,219.10 × 58,284,023.40
4. Step 4: Simplify right side
   139,005,124.20x = 12,158,468,039,433,326
5. Step 5: Solve for x
   x = 12,158,468,039,433,326/139,005,124.20
6. Step 6: Final answer
   x = 87,467,768.61