Finding the Fourth Proportional to 103,931.34, 143,425.35 and 56,184.69

Step by Step Solution

1. Step 1: Write the proportion equation
   103,931.34 : 143,425.35 = 56,184.69 : x
2. Step 2: Convert to fraction form
   103,931.34/143,425.35 = 56,184.69/x
3. Step 3: Cross multiply
   103,931.34x = 143,425.35 × 56,184.69
4. Step 4: Simplify right side
   103,931.34x = 8,058,308,827.89
5. Step 5: Solve for x
   x = 8,058,308,827.89/103,931.34
6. Step 6: Final answer
   x = 77,534.93