Finding the Fourth Proportional to 102,475, 141,415.50 and 55,371

Step by Step Solution

1. Step 1: Write the proportion equation
   102,475 : 141,415.50 = 55,371 : x
2. Step 2: Convert to fraction form
   102,475/141,415.50 = 55,371/x
3. Step 3: Cross multiply
   102,475x = 141,415.50 × 55,371
4. Step 4: Simplify right side
   102,475x = 7,830,317,650.50
5. Step 5: Solve for x
   x = 7,830,317,650.50/102,475
6. Step 6: Final answer
   x = 76,411.98