Finding the Fourth Proportional to 151,490, 209,060.52 and 84,426.32

Step by Step Solution

1. Step 1: Write the proportion equation
   151,490 : 209,060.52 = 84,426.32 : x
2. Step 2: Convert to fraction form
   151,490/209,060.52 = 84,426.32/x
3. Step 3: Cross multiply
   151,490x = 209,060.52 × 84,426.32
4. Step 4: Simplify right side
   151,490x = 17,650,210,360.89
5. Step 5: Solve for x
   x = 17,650,210,360.89/151,490
6. Step 6: Final answer
   x = 116,510.73