Finding the Fourth Proportional to 102,477.66, 152,697.77 and 91,298.45

Step by Step Solution

1. Step 1: Write the proportion equation
   102,477.66 : 152,697.77 = 91,298.45 : x
2. Step 2: Convert to fraction form
   102,477.66/152,697.77 = 91,298.45/x
3. Step 3: Cross multiply
   102,477.66x = 152,697.77 × 91,298.45
4. Step 4: Simplify right side
   102,477.66x = 13,941,069,719.46
5. Step 5: Solve for x
   x = 13,941,069,719.46/102,477.66
6. Step 6: Final answer
   x = 136,040.09