Finding the Fourth Proportional to 914,279.89, 1,371,510.01 and 315,162.17

Step by Step Solution

1. Step 1: Write the proportion equation
   914,279.89 : 1,371,510.01 = 315,162.17 : x
2. Step 2: Convert to fraction form
   914,279.89/1,371,510.01 = 315,162.17/x
3. Step 3: Cross multiply
   914,279.89x = 1,371,510.01 × 315,162.17
4. Step 4: Simplify right side
   914,279.89x = 432,248,070,928.32
5. Step 5: Solve for x
   x = 432,248,070,928.32/914,279.89
6. Step 6: Final answer
   x = 472,774.34