Finding the Fourth Proportional to 99,075.59, 136,799.17 and 60,887.83

Step by Step Solution

1. Step 1: Write the proportion equation
   99,075.59 : 136,799.17 = 60,887.83 : x
2. Step 2: Convert to fraction form
   99,075.59/136,799.17 = 60,887.83/x
3. Step 3: Cross multiply
   99,075.59x = 136,799.17 × 60,887.83
4. Step 4: Simplify right side
   99,075.59x = 8,329,404,607.10
5. Step 5: Solve for x
   x = 8,329,404,607.10/99,075.59
6. Step 6: Final answer
   x = 84,071.21