Finding the Fourth Proportional to 13,298,875.56, 19,954,074.06 and 7,143,675.10

Step by Step Solution

1. Step 1: Write the proportion equation
   13,298,875.56 : 19,954,074.06 = 7,143,675.10 : x
2. Step 2: Convert to fraction form
   13,298,875.56/19,954,074.06 = 7,143,675.10/x
3. Step 3: Cross multiply
   13,298,875.56x = 19,954,074.06 × 7,143,675.10
4. Step 4: Simplify right side
   13,298,875.56x = 142,545,421,956,092.72
5. Step 5: Solve for x
   x = 142,545,421,956,092.72/13,298,875.56
6. Step 6: Final answer
   x = 10,718,607.10