Finding the Fourth Proportional to 162,085.90, 243,300.05 and 91,069.22

Step by Step Solution

1. Step 1: Write the proportion equation
   162,085.90 : 243,300.05 = 91,069.22 : x
2. Step 2: Convert to fraction form
   162,085.90/243,300.05 = 91,069.22/x
3. Step 3: Cross multiply
   162,085.90x = 243,300.05 × 91,069.22
4. Step 4: Simplify right side
   162,085.90x = 22,157,146,551.98
5. Step 5: Solve for x
   x = 22,157,146,551.98/162,085.90
6. Step 6: Final answer
   x = 136,700.03