Finding the Fourth Proportional to 105,447,912.18, 145,516,493.42 and 59,039,826.86

Step by Step Solution

1. Step 1: Write the proportion equation
   105,447,912.18 : 145,516,493.42 = 59,039,826.86 : x
2. Step 2: Convert to fraction form
   105,447,912.18/145,516,493.42 = 59,039,826.86/x
3. Step 3: Cross multiply
   105,447,912.18x = 145,516,493.42 × 59,039,826.86
4. Step 4: Simplify right side
   105,447,912.18x = 8,591,268,576,791,128
5. Step 5: Solve for x
   x = 8,591,268,576,791,128/105,447,912.18
6. Step 6: Final answer
   x = 81,474,051.02