Finding the Fourth Proportional to 249,275.18, 373,962.06 and 91,505

Step by Step Solution

1. Step 1: Write the proportion equation
   249,275.18 : 373,962.06 = 91,505 : x
2. Step 2: Convert to fraction form
   249,275.18/373,962.06 = 91,505/x
3. Step 3: Cross multiply
   249,275.18x = 373,962.06 × 91,505
4. Step 4: Simplify right side
   249,275.18x = 34,219,398,300.30
5. Step 5: Solve for x
   x = 34,219,398,300.30/249,275.18
6. Step 6: Final answer
   x = 137,275.59