Finding the Fourth Proportional to 154,426,111.56, 213,107,209.65 and 83,861,104.95

Step by Step Solution

1. Step 1: Write the proportion equation
   154,426,111.56 : 213,107,209.65 = 83,861,104.95 : x
2. Step 2: Convert to fraction form
   154,426,111.56/213,107,209.65 = 83,861,104.95/x
3. Step 3: Cross multiply
   154,426,111.56x = 213,107,209.65 × 83,861,104.95
4. Step 4: Simplify right side
   154,426,111.56x = 17,871,406,074,060,304
5. Step 5: Solve for x
   x = 17,871,406,074,060,304/154,426,111.56
6. Step 6: Final answer
   x = 115,727,877.19