Finding the Fourth Proportional to 104,088.42, 143,641.98 and 56,342.16

Step by Step Solution

1. Step 1: Write the proportion equation
   104,088.42 : 143,641.98 = 56,342.16 : x
2. Step 2: Convert to fraction form
   104,088.42/143,641.98 = 56,342.16/x
3. Step 3: Cross multiply
   104,088.42x = 143,641.98 × 56,342.16
4. Step 4: Simplify right side
   104,088.42x = 8,093,099,419.88
5. Step 5: Solve for x
   x = 8,093,099,419.88/104,088.42
6. Step 6: Final answer
   x = 77,752.16