Finding the Fourth Proportional to 42,881.67, 64,300.57 and 17,914.91

Step by Step Solution

1. Step 1: Write the proportion equation
   42,881.67 : 64,300.57 = 17,914.91 : x
2. Step 2: Convert to fraction form
   42,881.67/64,300.57 = 17,914.91/x
3. Step 3: Cross multiply
   42,881.67x = 64,300.57 × 17,914.91
4. Step 4: Simplify right side
   42,881.67x = 1,151,938,558.21
5. Step 5: Solve for x
   x = 1,151,938,558.21/42,881.67
6. Step 6: Final answer
   x = 26,863.19