Finding the Fourth Proportional to 148,746.27, 223,090.72 and 42,129.40

Step by Step Solution

1. Step 1: Write the proportion equation
   148,746.27 : 223,090.72 = 42,129.40 : x
2. Step 2: Convert to fraction form
   148,746.27/223,090.72 = 42,129.40/x
3. Step 3: Cross multiply
   148,746.27x = 223,090.72 × 42,129.40
4. Step 4: Simplify right side
   148,746.27x = 9,398,678,179.17
5. Step 5: Solve for x
   x = 9,398,678,179.17/148,746.27
6. Step 6: Final answer
   x = 63,185.98