Finding the Fourth Proportional to 104,062.15, 156,086.74 and 64,088.74

Step by Step Solution

1. Step 1: Write the proportion equation
   104,062.15 : 156,086.74 = 64,088.74 : x
2. Step 2: Convert to fraction form
   104,062.15/156,086.74 = 64,088.74/x
3. Step 3: Cross multiply
   104,062.15x = 156,086.74 × 64,088.74
4. Step 4: Simplify right side
   104,062.15x = 10,003,402,187.20
5. Step 5: Solve for x
   x = 10,003,402,187.20/104,062.15
6. Step 6: Final answer
   x = 96,129.12