Finding the Fourth Proportional to 55,186,791.60, 82,709,328.60 and 42,343,634.10

Step by Step Solution

1. Step 1: Write the proportion equation
   55,186,791.60 : 82,709,328.60 = 42,343,634.10 : x
2. Step 2: Convert to fraction form
   55,186,791.60/82,709,328.60 = 42,343,634.10/x
3. Step 3: Cross multiply
   55,186,791.60x = 82,709,328.60 × 42,343,634.10
4. Step 4: Simplify right side
   55,186,791.60x = 3,502,213,546,895,065
5. Step 5: Solve for x
   x = 3,502,213,546,895,065/55,186,791.60
6. Step 6: Final answer
   x = 63,461,082.72