Finding the Fourth Proportional to 12,791,061.40, 19,196,541.57 and 8,927,786.35

Step by Step Solution

1. Step 1: Write the proportion equation
   12,791,061.40 : 19,196,541.57 = 8,927,786.35 : x
2. Step 2: Convert to fraction form
   12,791,061.40/19,196,541.57 = 8,927,786.35/x
3. Step 3: Cross multiply
   12,791,061.40x = 19,196,541.57 × 8,927,786.35
4. Step 4: Simplify right side
   12,791,061.40x = 171,382,621,795,853.56
5. Step 5: Solve for x
   x = 171,382,621,795,853.56/12,791,061.40
6. Step 6: Final answer
   x = 13,398,623.96