Finding the Fourth Proportional to 92,947,188.56, 139,293,235.71 and 58,807,418.72

Step by Step Solution

1. Step 1: Write the proportion equation
   92,947,188.56 : 139,293,235.71 = 58,807,418.72 : x
2. Step 2: Convert to fraction form
   92,947,188.56/139,293,235.71 = 58,807,418.72/x
3. Step 3: Cross multiply
   92,947,188.56x = 139,293,235.71 × 58,807,418.72
4. Step 4: Simplify right side
   92,947,188.56x = 8,191,475,636,565,161
5. Step 5: Solve for x
   x = 8,191,475,636,565,161/92,947,188.56
6. Step 6: Final answer
   x = 88,130,429.38