Finding the Fourth Proportional to 42,673,838.10, 64,005,357.84 and 13,527,958.03

Step by Step Solution

1. Step 1: Write the proportion equation
   42,673,838.10 : 64,005,357.84 = 13,527,958.03 : x
2. Step 2: Convert to fraction form
   42,673,838.10/64,005,357.84 = 13,527,958.03/x
3. Step 3: Cross multiply
   42,673,838.10x = 64,005,357.84 × 13,527,958.03
4. Step 4: Simplify right side
   42,673,838.10x = 865,861,794,343,908.25
5. Step 5: Solve for x
   x = 865,861,794,343,908.25/42,673,838.10
6. Step 6: Final answer
   x = 20,290,225.42