Finding the Fourth Proportional to 375,410.19, 563,110.52 and 91,103.07

Step by Step Solution

1. Step 1: Write the proportion equation
   375,410.19 : 563,110.52 = 91,103.07 : x
2. Step 2: Convert to fraction form
   375,410.19/563,110.52 = 91,103.07/x
3. Step 3: Cross multiply
   375,410.19x = 563,110.52 × 91,103.07
4. Step 4: Simplify right side
   375,410.19x = 51,301,096,665.78
5. Step 5: Solve for x
   x = 51,301,096,665.78/375,410.19
6. Step 6: Final answer
   x = 136,653.45