Finding the Fourth Proportional to 89,384,476.80, 134,064,273.60 and 28,806,326.40

Step by Step Solution

1. Step 1: Write the proportion equation
   89,384,476.80 : 134,064,273.60 = 28,806,326.40 : x
2. Step 2: Convert to fraction form
   89,384,476.80/134,064,273.60 = 28,806,326.40/x
3. Step 3: Cross multiply
   89,384,476.80x = 134,064,273.60 × 28,806,326.40
4. Step 4: Simplify right side
   89,384,476.80x = 3,861,899,223,900,502.50
5. Step 5: Solve for x
   x = 3,861,899,223,900,502.50/89,384,476.80
6. Step 6: Final answer
   x = 43,205,479.99