Finding the Fourth Proportional to 102,333.61, 141,224.74 and 57,011.57

Step by Step Solution

1. Step 1: Write the proportion equation
   102,333.61 : 141,224.74 = 57,011.57 : x
2. Step 2: Convert to fraction form
   102,333.61/141,224.74 = 57,011.57/x
3. Step 3: Cross multiply
   102,333.61x = 141,224.74 × 57,011.57
4. Step 4: Simplify right side
   102,333.61x = 8,051,443,301.59
5. Step 5: Solve for x
   x = 8,051,443,301.59/102,333.61
6. Step 6: Final answer
   x = 78,678.39