Finding the Fourth Proportional to 30,541,047.60, 42,147,518 and 18,620,549.18

Step by Step Solution

1. Step 1: Write the proportion equation
   30,541,047.60 : 42,147,518 = 18,620,549.18 : x
2. Step 2: Convert to fraction form
   30,541,047.60/42,147,518 = 18,620,549.18/x
3. Step 3: Cross multiply
   30,541,047.60x = 42,147,518 × 18,620,549.18
4. Step 4: Simplify right side
   30,541,047.60x = 784,809,931,733,935.25
5. Step 5: Solve for x
   x = 784,809,931,733,935.25/30,541,047.60
6. Step 6: Final answer
   x = 25,696,889.71