Finding the Fourth Proportional to 56,922,213.60, 85,468,353.12 and 56,071,908

Step by Step Solution

1. Step 1: Write the proportion equation
   56,922,213.60 : 85,468,353.12 = 56,071,908 : x
2. Step 2: Convert to fraction form
   56,922,213.60/85,468,353.12 = 56,071,908/x
3. Step 3: Cross multiply
   56,922,213.60x = 85,468,353.12 × 56,071,908
4. Step 4: Simplify right side
   56,922,213.60x = 4,792,373,633,056,153
5. Step 5: Solve for x
   x = 4,792,373,633,056,153/56,922,213.60
6. Step 6: Final answer
   x = 84,191,624.50