Finding the Fourth Proportional to 131,111.40, 180,931.91 and 73,746.39

Step by Step Solution

1. Step 1: Write the proportion equation
   131,111.40 : 180,931.91 = 73,746.39 : x
2. Step 2: Convert to fraction form
   131,111.40/180,931.91 = 73,746.39/x
3. Step 3: Cross multiply
   131,111.40x = 180,931.91 × 73,746.39
4. Step 4: Simplify right side
   131,111.40x = 13,343,074,561.61
5. Step 5: Solve for x
   x = 13,343,074,561.61/131,111.40
6. Step 6: Final answer
   x = 101,768.99